Pneumatically-operated teat-cup.



erefrne PNEUMTCLLY-OPEBTD TEAT-CUP.

Application filed April 2.

fining at "Glencairnf Teniplestone Bead.

j Heidelberg. in' the State of Victoria, Australia, and HAROLD BARTRAM, a subject of the lling et' Greatritain. residing at 586- clourlie street, Melbourne. in tie State of Victoria. aforesaid, llave invented linprovenients in Pneuniatieelly-Operated Teat- Cups. oie n'liien tion.

The object of tliis invention is to provide a simple anti eteient nnenniatieally-operatetl tent cup which may be easily kept svveet and crean. in contratlistinction to cups which are formell partially or .vliolly ot' rubber. and is, moremenn'iore (lui-able and reliable,

as there are ne rubber or tlexible linings to renew. a

Brietly stated, tlie casing oi tlie cup is nrovifled 'with a rigid. el approximately A n rigil, teal sleeve ivnicli is prerei pendent et the casing azul made ot metal. anijl wliieli'is ci pable of reciprocation therein. preferably in synchronisin'n'itli the pulsations caused by alternate suction and air` According to one practical term. the teatsleeve is spring-Connelled and is adapted to be drawn .lown against the tension oi tlic spring duringA tiie suction period oi' the pul- Sation cycle. and to be returned bv tlie spring {lui-ing; t-'ue air ailmission perioil thereof. Y" The lie-.ul el the sleeve insure a` goed sliding; tit within the Casin?. and it niajw have piston rings. springs. or the like. with or witlinut one or niere run leal-hers.

lt' desired, tlie may be provided with ln C-rller to avoirl metal i in this specification is as including any' other suitable n'oriinanly rigid material.

lThe invention is illustrated by 'foinpanyiug drawings 'vvliereot`- Figure l is a verticalsection *.liroufgli one torni et a cup embodying the improvements. Fig. 2 is a detail of tlieteat sleeve. showing one "iitable torni ot lieatl therefor.

Referring to Fi. l. tlie metal easing of the tent cup is preferably inatle in two parts, viz: a cylindrical upper part l. and

a taperer. levier part la. which are detach is se malle as to nieutliepieee et tbe cup a flexible teal; grip.

repetition. tlie .voril to bc laken rigid fu' aptlic artlie 'following is a specificaably iinle-l Speccation of Letters Patent.

Patented Jan. i2., ist

9M. Serial No. $33,397., ablgY connected together by a angecl screwcap or cellar lt?. sueli Construction permitting tlie cup to be readily' taken topieees ier cleaning purposes. :it its upper engl, tlnK casing i adjacent which is an internal slioulfier 2, a

second internal shoulder 3 being produced said parts l.

in the casing at the junction ot the aforeaitl la.

The "metal" tent sleeve tapered, as lieail (l, neatly fitting the cylindrical part of tlie casing. between which lie-acl. and the lower shoulder 3 a spring T isfplnned to non nially support the sleeve and ilaintain its head against the upper shouliler The'lieatl 6 oiQ the slee@ may be inatle like a piston. and fitted n'itli practicallyv airtight packings, as,.t'or instance, by means et cup leathers S. as illustrated in 2: or the lieail inav be plain. as in Fig. l, it' a goed lit @an be assured. suitable tent grip Jfor the mouth-piece majconsist of a iexible disk il. with a nenti-al liole i0. tittefl inte an annulaigreove ll formed interiorly in tlie mentir-piece. as i-n Fig. '1.

operation, tbe suction causes sleeve 5 and. consequently.

5 is preferably tne tent the teat. to be (lraivn slightlyv downward. While tlie casing moves in the opposite tlirection, at rfnicli time t-ne milk tloivs.

Wsli/'hen tlie air is admitted. the casing drops. and tlic spring T returns the sleeve. thus producing a 4reciprocating movement and. consequently. a massaging7 etlect on the teat somewhat similar to lianclinilking.

l. il tent cup *for pulsating milkinginacliines comprising a easing, and a tent sleeve capable ot recinrecatien therein in synclu'nnisni with the pulsations.

A tent cupfor pulsating milking inarliiues comprising `zamsing. and a teatsleeve capable o' recipincation therein in syncluzonisin with tlie Vpiilsations, salti sleeve having a lieacl neatljv7 tilting saifl tent cup for pulsating milking inaeliines comprising a casing, and a tapereil teat sleeve capable et" reeiprocation therein in synelireni" n with tbe pulsations.

l. .il tent cup tor pulsating milking niaeliines comprising a Casing, anil a springenp'porteil teat sleeve capable of reciproca tion therein in synclironism with the pulsations.

is provided with a moutli-iiece`fl,`

illustrated, and is formed with a A.lower par cletaehably connected o. A tee cup for pulsating milking ninehines comprising a casing provided with a,

7. A tent cup for chines comprising a casing provided with a mouth-piece formedI with a groove, a exi-A le teat grip seated in said groove and formed Wih a central opening, and a. teat sleeve capable of reciprocation Within said casing.

In testimony whereof we have hereunto set our hands in presence of two subscribing Witnesses.

ALEXANDER GILLIES. HAROLD BARTRAVI: Witnesses:

EDWARD lWATERS, EDWARD N. WATERS.

pulsating milking Ina- 

